PT-2026-93662 · Linux · Linux Kernel
CVE-2026-90021
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Published
2026-09-16
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Updated
2026-09-24
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the USB gadget MIDI function where work is not properly initialized. The
f midi alloc() function initializes free ref to 1, but the INIT WORK process is only performed within f midi bind() via f midi register card(). If f midi bind() is never executed, the work remains uninitialized. Consequently, when the condition in f midi free() becomes true, it triggers a warning in flush work() because the work->func is set to 0.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel